gcc/exec-tool.in

   1 #! /bin/sh
   2
   3 # Copyright (C) 2007 Free Software Foundation, Inc.
   4 # This file is part of GCC.
   5
   6 # GCC is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3, or (at your option)
   9 # any later version.
  10
  11 # GCC is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with GCC; see the file COPYING3.  If not see
  18 # <http://www.gnu.org/licenses/>.
  19
  20 # Invoke as, ld or nm from the build tree.
  21
  22 ORIGINAL_AS_FOR_TARGET="@ORIGINAL_AS_FOR_TARGET@"
  23 ORIGINAL_LD_FOR_TARGET="@ORIGINAL_LD_FOR_TARGET@"
  24 ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@"
  25 exeext=@host_exeext@
  26
  27 invoked=`basename "$0"`
  28 case "$invoked" in
  29   as)
  30     original=$ORIGINAL_AS_FOR_TARGET
  31     prog=as-new$exeext
  32     dir=gas
  33     ;;
  34   collect-ld)
  35     original=$ORIGINAL_LD_FOR_TARGET
  36     prog=ld-new$exeext
  37     dir=ld
  38     ;;
  39   nm)
  40     original=$ORIGINAL_NM_FOR_TARGET
  41     prog=nm-new$exeext
  42     dir=binutils
  43     ;;
  44 esac
  45
  46 case "$original" in
  47   ../*)
  48     # compute absolute path of the location of this script
  49     tdir=`dirname "$0"`
  50     scriptdir=`cd "$tdir" && pwd`
  51
  52     if test -x $scriptdir/../$dir/$prog; then
  53       exec $scriptdir/../$dir/$prog ${1+"$@"}
  54     else
  55       exec $scriptdir/../prev-$dir/$prog ${1+"$@"}
  56     fi
  57     ;;
  58   *)
  59     exec "$original" ${1+"$@"}
  60     ;;
  61 esac
  62
  63